Aramid film forming drying device
By designing a movable tube and drive roller in the drying device for aramid film forming to form a closed space, hot air is used for drying and recovery, solving the problems of low hot air utilization and drying time control, and achieving efficient aramid film drying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHAANXI SHENGSHI CHENYANG TECH DEV CO LTD
- Filing Date
- 2023-12-05
- Publication Date
- 2026-06-02
Smart Images

Figure CN117382057B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of aramid molding equipment, specifically relating to a drying device for aramid film molding. Background Technology
[0002] Aramid is a new type of high-tech synthetic fiber with excellent properties such as ultra-high strength, high modulus, high temperature resistance, acid and alkali resistance, light weight, insulation, aging resistance, and long lifespan. It is widely used in composite materials, bulletproof products, building materials, special protective clothing, electronic equipment, and other fields. Most existing aramid film production methods involve heating the raw material first, then extracting the heated material from the mold, and finally cooling the film with a hair dryer and water. Chinese patent CN219705824U discloses a rapid drying device for aramid film forming. This prior art dries the aramid film by passing it through two blowers. This setup results in most of the hot air blown out of the blowers dissipating, leading to low energy efficiency. Furthermore, the blowing range is fixed, and the drying time can only be controlled by reducing the moving speed of the aramid film. However, reducing the moving speed of the aramid film also reduces the drying speed. Summary of the Invention
[0003] To address the shortcomings of the prior art, the present invention aims to provide a drying apparatus for aramid film forming. This apparatus, with its movable tubes and drive rollers forming a relatively enclosed space, allows for the reduction of heat loss compared to an open space by introducing hot air into it, and enables the recovery and reuse of the hot air. Furthermore, when the aramid film's moving speed remains constant, the drying time can be controlled by adjusting the distance between the movable tubes on both sides, facilitating the drying of aramid films of varying thicknesses.
[0004] The technical solution adopted by this drying device for aramid film molding to solve its technical problems is as follows:
[0005] A drying apparatus for aramid film molding is provided, including a base. Two fixed plates, one in front of the other, are fixedly mounted on the top surface of the base. An inverted U-shaped movable plate is provided on the top surface of the two fixed plates. A moving device capable of driving the movable plate to move up and down is provided behind the rear fixed plate. Two movable tubes, one on the left and one on the right, are provided between the two fixed plates and inside the movable plate. An adjusting device for adjusting the distance between the two corresponding movable tubes is provided on the fixed plates. A drive roller is provided between each pair of corresponding movable tubes, and the outer periphery of the drive roller is in contact with the outer periphery of the corresponding two movable tubes. The moving tube has an inner tube that contacts and engages with it. The outer circumference of the inner tube has a strip-shaped opening. The outer circumference of the transmission roller has evenly distributed air holes. Both the front and rear ends of the moving tube and the transmission roller are rotatably equipped with sealing rings of the same outer diameter. The sealing rings contact and engage with the corresponding fixed plates and moving plates, respectively. The outer circumferences of the two sealing rings on the transmission roller are fixedly connected to the outer circumferences of the sealing rings on the corresponding moving tubes. A drive device is provided between the two fixed plates to drive the transmission roller located on the lower side to rotate. A hot air device is provided on the base, which can introduce hot air into the inner tube and recover it.
[0006] Furthermore, the moving device consists of a cylinder and two mounting plates. The two mounting plates are fixedly installed on the outer periphery of the movable plate and the rear side of the fixed plate, respectively, and the cylinder is fixedly installed between the two mounting plates.
[0007] Furthermore, sealing strips are fixedly installed on the top surface of the fixed plate and the bottom surface of the movable plate.
[0008] Furthermore, the adjustment device consists of four slide grooves, eight sliders, four connecting rods, two movable plates, and a double-headed electric actuator. The slide grooves are respectively opened on the opposite side of the fixed plate and the front and rear sides of the inner wall of the movable plate. The sliders are respectively set in the corresponding slide grooves. The front and rear ends of the inner tube are respectively fixedly connected to the corresponding sliders. The sliders located on the rear side are respectively fixedly connected to one end of the connecting rod. The other end of the connecting rod is respectively connected to the movable plate. A limit slide groove slider structure is set between the other end of the connecting rod located on the upper side and the movable plate. The double-headed electric actuator is fixedly installed behind the fixed plate located on the rear side. The movable end of the double-headed electric actuator is respectively connected to the two movable plates.
[0009] Furthermore, the limiting slide block structure consists of a limiting groove and a limiting block. The limiting groove is opened on the moving plate, the limiting block is located in the limiting groove and can slide along it, and the connecting rod on the upper side is fixedly connected to the corresponding limiting block.
[0010] Furthermore, the hot air device consists of four flexible hoses, a dehumidifier, a hot air pump, and a connecting pipe. One end of each of the four flexible hoses is fixedly connected to the opposite side of the moving plate. A through groove is provided on the limiting groove, and the upper hose passes through the through groove and is fixedly connected to the limiting block. The moving plate, the limiting block, the connecting rod, and the slider are provided with channels that can connect the flexible hoses and the inner pipe. The two flexible hoses on one side are connected to the air inlet of the dehumidifier, and the two flexible hoses on the other side are connected to the air outlet of the hot air pump. The air outlet of the dehumidifier is connected to the air inlet of the hot air pump through the connecting pipe.
[0011] Furthermore, the drive device consists of a motor, a drive roller, a transmission belt, and a tensioning device. The motor is fixedly installed behind the fixed plate located at the rear. The output shaft of the motor passes through the fixed plate and is rotatably connected. The drive roller is rotatably installed between the two fixed plates. The output shaft of the motor is fixedly connected to the rear of the drive roller. The transmission belt is located between the drive roller and the transmission roller located at the lower side. The tensioning device can make the transmission belt taut.
[0012] Furthermore, the tensioning device consists of two spring rods with built-in tension springs, a tensioning roller, and a mounting frame. The mounting frame is fixedly installed between two fixed plates, the spring rods are installed on the mounting frame one in front of the other, and the tensioning roller is rotatably installed between the movable ends of the two spring rods. The transmission belt passes around the tensioning roller.
[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0014] 1. An example of the present invention is a drying apparatus for forming aramid film. A movable device drives a movable plate upwards, allowing the aramid film to pass between movable tubes. An adjusting device can adjust the distance between the two movable tubes, allowing the tubes to move relative to or away from each other. A sealing ring drives a transmission roller downwards, which is always in contact with the outer periphery of the corresponding two movable tubes. After adjustment, the movable device drives the movable plate downwards, clamping the aramid film between the movable tubes. A hot air device is then activated, introducing hot air into two inner tubes. The hot air then exits through aligned air holes on the inner tubes and enters the space enclosed by the movable tubes and the transmission roller, thus drying the aramid film. Finally, the hot air flows through the air holes and the other... The two inner tubes return to the hot air device for reheating. At this time, the drive device is turned on to drive the transmission roller to rotate, which in turn drives each movable tube and the upper transmission roller to rotate, thereby moving the aramid film. By controlling the distance between the movable tubes on both sides, the drying time of the aramid film can be controlled. Compared with the prior art, the movable tubes and transmission rollers of this invention can form a relatively closed space. By passing hot air into this space, compared with an open space, the loss of hot air can be reduced, and the hot air can be recovered and reused. In addition, when the moving speed of the aramid film remains constant, the drying time of the aramid film can be controlled by adjusting the distance between the movable tubes on both sides, which is beneficial for drying aramid films of different thicknesses.
[0015] 2. An example of the present invention is a drying device for forming aramid film. The control cylinder extends and retracts, which can drive the movable plate to move up and down. The moving device has a simple structure and is easy to use.
[0016] 3. In an example of the present invention, a drying device for forming aramid film has a sealing strip that ensures the sealing between the top surface of the fixed plate and the bottom surface of the movable plate, preventing excessive heat from escaping between the top surface of the fixed plate and the bottom surface of the movable plate.
[0017] 4. An example of the present invention is a drying device for aramid film forming. By extending and retracting the double-headed electric push rod, the moving plate can be moved relative to or away from each other. In turn, the corresponding slider can be moved through the connecting rod, thereby moving the inner tube and then the movable tube. The adjustment device has a simple structure and is easy to use.
[0018] 5. An example of the present invention is a drying device for forming aramid film, wherein the limiting block can slide up and down along the limiting groove, and the structure makes the adjustment device not affect the up and down movement of the movable plate.
[0019] 6. An example of the present invention is a drying device for aramid film forming. When the hot air pump is turned on, the hot air pump enables gas flow. The gas passes through the inner tube and the channel into the hose, and then enters the dehumidifier along two of the hoses for dehumidification. Finally, after being heated in the hot air pump, it enters the other two hoses and enters the inner tube along the hose and the channel. The hot air device is equipped with hoses that can move with the movement of the connecting rod. The connecting rod is equipped with channels to ensure that the hoses are interconnected with the corresponding inner tubes. The structure is simple and easy to use.
[0020] 7. An example of the present invention is a drying device for forming aramid film. When the motor is turned on, the output shaft of the motor rotates, which drives the active roller to rotate. The rotation of the active roller drives the transmission roller to rotate through the transmission belt. The drive device has a simple structure and is easy to use.
[0021] 8. An example of the present invention is a drying device for aramid film forming, wherein the spring rod has a certain tension, which enables the tensioning roller to contact the transmission belt, and the spring rod can extend and retract with the movement of the transmission roller to ensure that the transmission belt is in a taut state. It can be automatically adjusted and is easy to use. Attached Figure Description
[0022] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0023] Figure 1 This is a schematic diagram of the structure of the present invention;
[0024] Figure 2 This is a rear view of the present invention;
[0025] Figure 3 This is the left view of the present invention.
[0026] In the diagram: 1 Base; 2 Fixed plate; 3 Movable plate; 4 Movable tube; 5 Drive roller; 6 Inner tube; 7 Sealing ring; 8 Air hole; 9 Cylinder; 10 Mounting plate; 11 Sealing strip; 12 Slide groove; 13 Slider; 14 Connecting rod; 15 Moving plate; 16 Double-headed electric actuator; 17 Limiting groove; 18 Limiting block; 19 Hose; 20 Dehumidifier; 21 Heat pump; 22 Connecting pipe; 23 Motor; 24 Drive roller; 25 Drive belt; 26 Spring rod; 27 Tensioning roller; 28 Mounting bracket. Detailed Implementation
[0027] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.
[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0029] like Figure 1-3As shown, a drying device for aramid film forming includes a base 1. Two fixed plates 2, one in front of the other, are fixedly mounted on the top surface of the base 1. An inverted U-shaped movable plate 3 is provided on the top surface of the two fixed plates 2. A moving device capable of driving the movable plate 3 to move up and down is provided behind the rear fixed plate 2. Two movable tubes 4, one on the left and one on the right, are provided between the two fixed plates 2 and inside the movable plate 3. An adjusting device is provided on the fixed plate 2 to adjust the distance between the corresponding movable tubes 4. A drive roller 5 is provided between each of the corresponding movable tubes 4, and the outer periphery of the drive roller 5 contacts and cooperates with the outer periphery of the corresponding two movable tubes 4. An inner tube 6 is provided inside the movable tube 4 and contacts and cooperates with it. A strip-shaped opening is provided on the outer periphery of the inner tube 6. Uniformly distributed air vents are provided on the outer periphery of the drive roller 5. The slotted opening of the inner tube 6 faces the space enclosed by the movable tube 4 and the drive roller 5. Both ends of the movable tube 4 and the drive roller 5 are rotatably equipped with sealing rings 7 of the same outer diameter. The sealing rings 7 are in contact with the corresponding fixed plate 2 and movable plate 3 respectively. The outer circumference of the two sealing rings 7 on the drive roller 5 is fixedly connected to the outer circumference of the sealing rings 7 on the corresponding movable tube 4. The sealing ring 7 on the rear side of each drive roller 5 is fixedly connected to the outer circumference of the sealing ring 7 on the rear side of the adjacent movable tube 4 on the right. The sealing ring 7 on the front side of each drive roller 5 is fixedly connected to the outer circumference of the sealing ring 7 on the front side of the adjacent movable tube 4 on the left. A drive device is provided between the two fixed plates 2 to drive the lower drive roller 5 to rotate. A hot air device is provided on the base 1. The hot air device can introduce hot air into the inner tube 6 and recover it.The movable plate is moved upward by the moving device, allowing the aramid film to pass between the movable tubes 4. The spacing between the two movable tubes 4 can be adjusted by the adjusting device. The movable tubes 4 can move relative to each other or away from each other, which can drive the transmission roller 5 downward through the sealing ring 7. The transmission roller 5 is always in contact with the outer periphery of the corresponding two movable tubes 4. After the adjustment is completed, the movable plate 3 is moved downward by the moving device, and the movable tubes 4 can clamp the aramid film. The hot air device is turned on, and hot air can be introduced into two of the inner tubes 6, and then discharged along the air holes 8 aligned with the strip openings on the inner tubes 6, and then enter the space enclosed by the movable tubes 4 and the transmission roller 5, thereby achieving the drying treatment of the aramid film. Finally, the hot air returns to the hot air device along the air holes 8 and the other two inner tubes 6 for reheating. At this time, the drive device is turned on to drive the transmission roller 5 to rotate, which in turn drives each of the movable tubes 4 and the space above. The drive roller 5 rotates, thereby moving the aramid film. By controlling the distance between the movable tubes 4 on both sides, the drying time of the aramid film can be controlled. Compared with the prior art, the movable tubes 4 and drive roller 5 of this invention can form a relatively closed space. By passing hot air into this space, heat loss can be reduced compared with an open space, and the hot air can be recovered and reused. In addition, when the moving speed of the aramid film remains constant, the drying time of the aramid film can be controlled by adjusting the distance between the movable tubes 4 on both sides, which is beneficial for drying aramid films of different thicknesses. Furthermore, the relatively closed space of this invention is formed by the movable tubes 4 and drive roller 5. When using this invention, the movement of the aramid film is achieved by the drive device, and the position of the movable tubes 4 is adjusted by the adjustment device, without affecting the formation of a sealed space by the movable tubes 4 and drive roller 5.
[0030] like Figure 1-3 As shown, in a further preferred embodiment, the moving device consists of a cylinder 9 and two mounting plates 10. The two mounting plates 10 are respectively fixedly installed on the outer periphery of the movable plate 3 and on the rear side of the fixed plate 2. The cylinder 9 is fixedly installed between the two mounting plates 10. By controlling the extension and retraction of the cylinder 9, the movable plate 3 can be moved up and down. This moving device has a simple structure and is easy to use.
[0031] like Figure 1-3 As shown, in a further preferred embodiment, sealing strips 11 are fixedly installed on the top surface of the fixed plate 2 and the bottom surface of the movable plate 3. The sealing strips can ensure the sealing between the top surface of the fixed plate 2 and the bottom surface of the movable plate 3, preventing excessive heat from escaping between the top surface of the fixed plate 2 and the bottom surface of the movable plate 3.
[0032] like Figure 1-3As shown, in a further preferred embodiment, the adjustment device consists of four sliding grooves 12, eight sliders 13, four connecting rods 14, two movable plates 15, and a double-headed electric actuator 16. The sliding grooves 12 are respectively opened on the opposite side of the fixed plate 2 and the front and rear sides of the inner wall of the movable plate 3. The sliders 13 are respectively set in the corresponding sliding grooves 12. The front and rear ends of the inner tube 6 are respectively fixedly connected to the corresponding sliders 13. The sliders 13 located on the rear side are respectively fixedly connected to one end of the connecting rod 14. The other end of the connecting rod 14 is respectively connected to the movable plate 15. A limit sliding groove slider structure is provided between the other end of the connecting rod 14 located on the upper side and the movable plate 15. The double-headed electric actuator 16 is fixedly installed on the rear of the fixed plate 2 located on the rear side. The movable end of the double-headed electric actuator 16 is respectively connected to the two movable plates 15. By extending and retracting the double-headed electric actuator 16, the moving plate 15 can be moved relative to or away from each other, which in turn can drive the corresponding slider 13 to move via the connecting rod 14, thereby driving the inner tube 6 to move, and in turn driving the movable tube 4 to move. This adjustment device has a simple structure and is easy to use.
[0033] like Figure 1-3 As shown, in a further preferred embodiment, the limiting slide block structure consists of a limiting groove 17 and a limiting block 18. The limiting groove 17 is a T-shaped groove, and the limiting block 18 is a T-shaped slider. The limiting groove 17 is formed on the movable plate 15, and the limiting block 18 is located within the limiting groove 17 and can slide along it. The connecting rod 14 located on the upper side is fixedly connected to the corresponding limiting block 18. The limiting block 18 can slide up and down along the limiting groove 17. This structure ensures that the adjustment device does not affect the up and down movement of the movable plate 3.
[0034] like Figure 1-3As shown, in a further preferred embodiment, the hot air device consists of four flexible hoses 19, a dehumidifier 20, a hot air pump 21, and a connecting pipe 22. One end of each of the four flexible hoses 19 is fixedly connected to the opposite side of the moving plate 15. A through groove is provided on the limiting groove 17, and the upper flexible hose 19 passes through the through groove and is fixedly connected to the limiting block 18. The moving plate 15, the limiting block 18, the connecting rod 14, and the slider 13 are provided with channels that can connect the flexible hoses 19 and the inner pipe 6. The two flexible hoses 19 on one side are connected to the air inlet of the dehumidifier 20, and the two flexible hoses 19 on the other side are connected to the air outlet of the hot air pump 21. The air outlet of the dehumidifier 20 is connected to the air inlet of the hot air pump 21 through the connecting pipe 22. Turning on the hot air pump 21 allows gas to flow. The gas passes through the inner tube 6 and the channel into the hose 19, and then along two of the hoses 19 into the dehumidifier 20 for dehumidification. Finally, after being heated in the hot air pump 21, the gas enters the other two hoses 19 and along the hoses 19 and the channel into the inner tube 6. The hot air device is equipped with hoses 19 that can move with the movement of the connecting rod 14. During use, it can be adapted to the moving device and the adjusting device to avoid affecting the function of the moving device and the adjusting device. The connecting rod 14 is equipped with a channel to ensure that the hoses 19 and the corresponding inner tubes 6 are interconnected. The structure is simple, easy to use, and can avoid the risk of air leakage. The moving device, adjusting device, and hot air device are all located on the rear side of the invention, which is convenient for the user to operate from the front side. During use, the aramid film that has been processed to the middle section can be directly taken out and put in, and the drying effect can be adjusted in a timely manner.
[0035] like Figure 1-3 As shown, in a further preferred embodiment, the drive device comprises a motor 23, a drive roller 24, a transmission belt 25, and a tensioning device. The motor 23 is fixedly mounted on the rear of the fixed plate 2 located at the rear. The output shaft of the motor 23 passes through the fixed plate 2 and is rotatably connected. The drive roller 24 is rotatably mounted between the two fixed plates 2. The output shaft of the motor 23 is fixedly connected to the rear of the drive roller 24. The transmission belt 25 is disposed between the drive roller 24 and the transmission roller 5 located below. The tensioning device can tighten the transmission belt 25. When the motor 23 is turned on, the output shaft of the motor 23 rotates, which drives the drive roller 24 to rotate. The rotation of the drive roller 24 drives the transmission roller 5 to rotate via the transmission belt 25. This drive device has a simple structure and is easy to use.
[0036] like Figure 1-3As shown, in a further preferred embodiment, the tensioning device comprises two spring rods 26 with built-in tension springs, a tensioning roller 27, and a mounting frame 28. The mounting frame 28 is fixedly installed between two fixed plates 2. The spring rods 26 are installed one in front of the other on the mounting frame 28. The tensioning roller 27 is rotatably installed between the movable ends of the two spring rods 26, and the transmission belt 25 passes over the tensioning roller 27. The spring rods 26 have a certain tension, which enables the tensioning roller 27 to contact the transmission belt 25. The spring rods 26 can extend and retract with the movement of the transmission roller 5, ensuring that the transmission belt 25 is in a tensioned state. This allows for automatic adjustment and is convenient to use.
[0037] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.
[0038] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this invention, the other technical features will not be described in detail here.
Claims
1. A drying device for aramid film forming, comprising a base (1), wherein two fixing plates (2) are fixedly installed on the top surface of the base (1), one in front and one behind, characterized in that, The top surfaces of the two fixed plates (2) are provided with inverted U-shaped movable plates (3). Behind the fixed plate (2) on the rear side, there is a moving device that can drive the movable plate (3) to move up and down. There are two movable tubes (4) on the left and right sides between the two fixed plates (2) and inside the movable plate (3). There is an adjusting device on the fixed plate (2) to adjust the distance between the two corresponding movable tubes (4). There is a transmission roller (5) between the two corresponding movable tubes (4). The outer periphery of the transmission roller (5) is in contact with the outer periphery of the two corresponding movable tubes (4). There is an inner tube (6) in contact with the movable tube (4). 6) has a strip-shaped opening on its outer periphery, and the transmission roller (5) has evenly distributed air holes (8) on its outer periphery. Both the front and rear ends of the movable tube (4) and the transmission roller (5) are rotatably installed with sealing rings (7) of the same outer diameter. The sealing rings (7) are in contact with the corresponding fixed plate (2) and movable plate (3) respectively. The outer periphery of the two sealing rings (7) on the transmission roller (5) is fixedly connected to the outer periphery of the sealing rings (7) on the corresponding movable tube (4). A drive device is provided between the two fixed plates (2) to drive the transmission roller (5) located on the lower side to rotate. A hot air device is provided on the base (1). The hot air device can introduce hot air into the inner tube (6) and recover it.
2. The drying apparatus for aramid film forming according to claim 1, characterized in that, The moving device consists of a cylinder (9) and two mounting plates (10). The two mounting plates (10) are fixedly installed on the outer periphery of the movable plate (3) and the rear side of the fixed plate (2), respectively. The cylinder (9) is fixedly installed between the two mounting plates (10).
3. The drying apparatus for aramid film forming according to claim 1, characterized in that, The top surface of the fixed plate (2) and the bottom surface of the movable plate (3) are both fixedly installed with sealing strips (11).
4. The drying apparatus for aramid film forming according to claim 1, characterized in that, The adjustment device consists of four slide grooves (12), eight sliders (13), four connecting rods (14), two movable plates (15), and a double-headed electric push rod (16). The slide grooves (12) are respectively opened on the opposite side of the fixed plate (2) and the front and rear sides of the inner wall of the movable plate (3). The sliders (13) are respectively set in the corresponding slide grooves (12). The front and rear ends of the inner tube (6) are respectively fixedly connected to the corresponding sliders (13). The sliders (13) located on the rear side are respectively fixedly connected to one end of the connecting rod (14). The other end of the connecting rod (14) is respectively connected to the movable plate (15). A limit slide groove slider structure is set between the other end of the connecting rod (14) located on the upper side and the movable plate (15). The double-headed electric push rod (16) is fixedly installed behind the fixed plate (2) located on the rear side. The movable end of the double-headed electric push rod (16) is respectively connected to the two movable plates (15).
5. The drying apparatus for aramid film forming according to claim 4, characterized in that, The limiting slide block structure consists of a limiting groove (17) and a limiting block (18). The limiting groove (17) is opened on the moving plate (15), and the limiting block (18) is located in the limiting groove (17) and can slide along it. The connecting rod (14) located on the upper side is fixedly connected to the corresponding limiting block (18).
6. The drying apparatus for aramid film forming according to claim 5, characterized in that, The hot air device consists of four hoses (19), a dehumidifier (20), a hot air pump (21), and a connecting pipe (22). One end of each of the four hoses (19) is fixedly connected to the opposite side of the moving plate (15). A through groove is provided on the limiting groove (17). The hose (19) on the upper side passes through the through groove and is fixedly connected to the limiting block (18). The moving plate (15), the limiting block (18), the connecting rod (14), and the slider (13) are provided with channels. The channels can connect the hoses (19) and the inner tube (6). The two hoses (19) on one side are connected to the air inlet of the dehumidifier (20), and the two hoses (19) on the other side are connected to the air outlet of the hot air pump (21). The air outlet of the dehumidifier (20) is connected to the air inlet of the hot air pump (21) through the connecting pipe (22).
7. A drying apparatus for aramid film forming according to any one of claims 1-6, characterized in that, The drive device consists of a motor (23), a drive roller (24), a transmission belt (25), and a tensioning device. The motor (23) is fixedly installed behind the fixed plate (2) located on the rear side. The output shaft of the motor (23) passes through the fixed plate (2) and is rotatably connected. The drive roller (24) is rotatably installed between the two fixed plates (2). The output shaft of the motor (23) is fixedly connected to the rear of the drive roller (24). The transmission belt (25) is located between the drive roller (24) and the transmission roller (5) located on the lower side. The tensioning device can make the transmission belt (25) taut.
8. The drying apparatus for aramid film forming according to claim 7, characterized in that, The tensioning device consists of two spring rods (26) with built-in tension springs, a tensioning roller (27) and a mounting frame (28). The mounting frame (28) is fixedly installed between two fixed plates (2). The spring rods (26) are installed on the mounting frame (28) one in front of the other. The tensioning roller (27) is rotatably installed between the movable ends of the two spring rods (26). The transmission belt (25) passes around the tensioning roller (27).